Quercus engelmannii

Also known as Engelmann oak

species of plant

In the Vinony graph

Quercus engelmannii is indexed among the 17,243 entries in Vinony's Endangered Species collection.

Vinony's link graph records 26 inbound references to Quercus engelmannii, and connects out to Quercus subg. Quercus, Mexico and plant.

It sits within the topics Drought-tolerant trees, Flora of Baja California and Flora of California.

Vinony links it to 19 Wikipedia language editions.

Species

Endangered

Engelmann oak

SPECIES

KingdomPlantae
PhylumTracheophyta
ClassMagnoliopsida
OrderFagales
FamilyFagaceae

Native toCalifornia, Mexico Northwest

Observations3,631

Observations recorded3,548

Trees , subevergreen, to 10 m. Bark gray or whitish, closely furrowed. Twigs light brown, 1-1.5 mm diam., densely or sparsely stellate-tomentose, soon glabrate. Buds reddish brown, subspheric to broadly ovoid, 1-2 mm, glabrous or basal scales pubescent; stipules persistent about terminal buds. Leaves: petiole (2-)3-4(-6) mm. Leaf blade oblong to elliptic, occasionally lanceolate or ovate, (20-)30-60(-80) × (5-)10-20(-25) mm, base cuneate to cordate, margins entire, undulate, sometimes irregularly toothed, especially toward apex, secondary veins 7-8(-10) on each side, branched, apex acute or broadly rounded; surfaces abaxially blue-green or pale green, densely and loosely glandular-tomentose, quickly glabrate or persistently floccose, especially about base of midrib, at maturity strongly glaucous, adaxially gray-green or pale green, bluish green or glaucous. Acorns solitary or paired, subsessile or on peduncle to 5-6 mm; cup cup-shaped or shallowly cup-shaped, 8-l0 mm deep × 10-15 mm wide, enclosing 1/3 nut, scales 1.5-3 mm wide, strongly and regularly tuberculate near base of cup, gray-pubescent; nut light brown, ovoid or oblong, 15-25 × 12-14 mm, glabrate or puberulent about apex.

via GBIF · IUCN · Kew POWO